Home / 86,165.23-129,247.88-27,005.50

Finding the Fourth Proportional to 86,165.23, 129,247.88 and 27,005.50

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Solution

The fourth proportional to 86,165.23, 129,247.88 and 27,005.50 is: 40,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,165.23 : 129,247.88 = 27,005.50 : x
  2. Step 2: Convert to fraction form
    86,165.23/129,247.88 = 27,005.50/x
  3. Step 3: Cross multiply
    86,165.23x = 129,247.88 × 27,005.50
  4. Step 4: Simplify right side
    86,165.23x = 3,490,403,623.34
  5. Step 5: Solve for x
    x = 3,490,403,623.34/86,165.23
  6. Step 6: Final answer
    x = 40,508.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.